In this paper, the application of amine reagents in the flotation of phosphate rock, bauxite, iron ore, magnesite and lead-zinc oxide ore is summarized, and its electrical changes and adsorption properties of amine reagents and mineral surface are reviewed, and the amine collectors with different carbon chain lengths, different types and different …
At present, sulfidization-amine method is commonly used in zinc oxide minerals flotation. Sodium sulfide as the sulfidizing reagent is used to increase the …
Molecules, 2021. Separating oxidized zinc minerals from flotation tailings is always a challenge. In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation …
Minerals Engineering. Oxide lead–zinc ore sample containing 10.17% Pb, 10.98% Zn, 57g/t Ag and 164g/t Cd was subjected to this experimental study and taken from Kayseri located in the foothills of the Aladağ Mountains, Turkey.
The low-grade zinc oxide ore was sulfidized to increase the efficiency of flotation, but the effect of pre-sulfidization on the adsorption mechanism of octadecyl amine (ODA) on the smithsonite surface is currently unclear. In this study, the effect of pre-sulfidization on the adsorption mechanism of …
Separating oxidized zinc minerals from flotation tailings is always a challenge. In this study, a flotation tailing from Wulagen zinc mine in China (Zn grade < 1%) was processed using froth flotation with combinations of amines (OPA 10, OPA 1214, OPA 13, DDA) and Na 2 S to study the effects of these amines on the zinc recovery as …
Therefore, it is necessary to further study the enhanced sulfidation mechanism when using C 7 H 5 NaO 6 S⋅2H 2 O as a complex agent during the sulfidation-amine flotation of smithsonite, as a result of the fact that the sulfidation-amine flotation has a dominant position in the processing of zinc oxide ores.
The flotation research of zinc oxide ores has been paid more and more attention with the increasing demand for zinc resources. In this particular study, micro-flotation tests were carried out using a mixed ternary collector comprising dodecylamine (DDA), potassium isoamyl xanthate (KAX), and ammonium dibutyl dithiophosphate …
In the sulfidization-amine flotation of zinc oxide, the inevitable presence of slime deteriorates the efficiency of zinc recovery, especially in the cleaner flotation stage. However, the relevant deteriorating mechanism has yet to be clearly explained. Results of micro-flotation indicated that the surface oxidization of smithsonite samples ...
Sulfidization flotation is one of the most widely used beneficiation methods for low-grade zinc oxide ores [6]. Sulfidizing agents such as sodium sulfide (Na 2 S) react with zinc oxide minerals to induce the formation of a sulfide film on the mineral surface [7], [8]. After sulfidization, the reaction of the anionic collector (xanthate) or cationic collector (amine) …
DOI: 10.37190/ppmp/145145 Corpus ID: 245363347; Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector @article{Xie2021InfluenceOP, title={Influence of polysorbate 80 on flotation of zinc oxide ores with amine collector}, author={Qiaoling Xie Xie and Dandan Wang and Chao Zhi …
Smithsonite is an important zinc oxide ore that is mainly recovered through flotation. Previous studies have demonstrated that fatty acid collectors, notably oleic acid, are effective in smithsonite flotation. ... (DFTB+) study on the sulfidization-amine flotation mechanism of smithsonite. Appl. Surf. Sci., Volume 458 (2018), pp. 454-463. View ...
French j.m.cases and others first applied the fatty acid process to the flotation of lead-zinc oxide ore containing silicate gangue, and used this process to treat sanguinide (sanguinete) lead ...
Sulfidization flotation is one of the most widely used beneficiation methods for low-grade zinc oxide ores [6].Sulfidizing agents such as sodium sulfide (Na 2 S) react with zinc oxide minerals to induce the formation of a sulfide film on the mineral surface [7], [8].After sulfidization, the reaction of the anionic collector (xanthate) or cationic collector (amine) …
In recent years, extraction of zinc from low-grade mining tailings of oxidized zinc has been a matter of discussion. This is a material which can be processed by flotation and acid-leaching methods. Owing to the similarities in the physicochemical and surface chemistry of the constituent minerals, separation of zinc oxide minerals from …
Sulfuration-amine flotation is the most commonly used method to separate zinc oxide ore, but its shortcomings such as unstable separation index and poor applicability to high mud-content raw ore ...
The amount of zinc oxide used for flotation varies with the type of ore, but the following amount can be used: Floating zinc oxide ore: sodium sulfide 6~12kg/t, primary … amine flotation zinc oxide Flotation of zinc oxide - Afuruika.
Flotation of the low-grade zinc oxide ore was achieved after surface modification by sulfidation and reduction at high temperature. A flotation concentrate …
Sulfuration-amine flotation is the most commonly used method to separate zinc oxide ore, but its shortcomings such as unstable separation index and poor applicability to high mud-content raw ore ...
Zinc oxide minerals (primarily smithsonite and hemimorphite) are important sources of Zn. Flotation is the most widely used method of enriching zinc oxide …
Sulfuration-amine flotation is the most commonly used method to separate zinc oxide ore, but its shortcomings such as unstable separation index and poor applicability to high mud-content raw ore ...
In this study, the influence of polysorbate 80 on zinc oxide flotation was investigated with an amine collector. The results indicated that the pretreatment of amines with polysorbate 80 enhanced the Zn grade and recovery obtained using zinc oxide flotation. Desliming prior to flotation is not suggested based on the results of this study.
Sulfidization-amine flotation, which using Na 2 S as sufidizing agent and amine as collector [5], [12], [21], [22], [23]. This method is the most successful technology used for zinc oxide minerals flotation in large-scale industrial applications since it was invented in the 1950s [3], [24]. ... We proposed amino acids as new high-efficiency ...
At present, sulfidization-amine method is commonly used in zinc oxide minerals flotation. Sodium sulfide as the sulfidizing reagent is used to increase the negative charges on mineral surface, and amines as collectors are used for zinc recovery through physical adsorption ( Fa et al., 2005 ).
A representative sample of zinc oxide from Dashteh Sefid mine was obtained and then mineral characterization studies were done. The results of mineralogical analysis showed that the main zinc-bearing minerals are smithsonite, hemimorphite and gangue minerals are quartz and dolomite. In the present paper, the effect of important …
Lead−zinc oxide ore is an important mineral resource in China, and its separation is difficult. Because of its complex mineral composition, large mud content, and fine dissemination size. Base on summarizing the surface characteristics of lead−zinc oxide ore, the mechanism and application of direct flotation of lead−zinc oxide ore such as …
The sulfidization-amine flotation method is commonly used for the beneficiation of zinc oxide ores. Lanping zinc oxide ores contains 8.40% zinc, with the main mineral being smithsonite; additionally, they have a high mud content. Conventional sulfidization–ammonium flotation presents a low flotation index and unsatisfactory …
Sulfidation-amine flotation is one of the most commonly used methods for treating zinc oxide ores. This method works by sulfidizing the ore and then using amine collectors to selectively float the ...
The sulfidization-amine flotation method is commonly used for the beneficiation of zinc oxide ores. Lanping zinc oxide ores contains 8.40% zinc, with the main mineral being smithsonite ...
The low-grade zinc oxide ore was sulfidized to increase the efficiency of flotation, but the effect of pre-sulfidization on the adsorption mechanism of octadecyl …
حقوق النشر © 2024.Artom كل الحقوق محفوظة.خريطة الموقع